LIGHT EMITTING DIODE LAMP

• US 20080291663A1
• Filed: 05/24/2007
• Published: 11/27/2008
• Est. Priority Date: 05/24/2007
• Status: Active Grant

• Current Assignee: Brasstech, Inc. (Masco Corporation)
• Original Assignee: Brasstech, Inc. (Masco Corporation)
• Inventors: Tau, Michael Scott, Wedell, Mark Taylor
• Granted Patent: US 7,641,361 B2
• Time in Patent Office: Days
• US Class Current: 362/147
• CPC Class Codes: F21K 9/00 Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
• CPC Class Codes: F21S 8/033 the surface being a wall or like vertical structure, e.g. building facade
• CPC Class Codes: F21V 19/0055 by screwing
• CPC Class Codes: F21Y 2107/30 on the outer surface of cylindrical surfaces, e.g. rod-shaped supports having a circular or a polygonal cross section
• CPC Class Codes: F21Y 2113/13 comprising an assembly of point-like light sources
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: Y10S 362/80 Light emitting diode

Abstract

An example light emitting diode bulb assembly includes a base having a first end portion and a second end portion defining an axis, a plurality of first light emitting diodes secured adjacent a plurality of first base surfaces about the axis, and at least one second light emitting diode secured adjacent a second base surface of the first end portion, wherein the second base surface is transverse to the plurality of first base surfaces.

Claims

1. A light emitting diode bulb assembly, comprising:

a base having a first end portion and a second end portion defining an axis;

a plurality of first light emitting diodes secured adjacent a plurality of first base surfaces about said axis; and

at least one second light emitting diode secured adjacent a second base surface of said first end portion, wherein said second base surface is transverse to said plurality of first base surfaces.

2. The bulb assembly of claim 1, wherein said base is extruded.

3. The bulb assembly of claim 1, wherein said base comprises aluminum.

4. The bulb assembly of claim 1, wherein said base has a generally rectangular cross section.

5. The bulb assembly of claim 1, including at least one channel in said base for communicating thermal energy between said first end portion and said second end portion.

6. The bulb assembly of claim 5, wherein said at least one channel is located in an interior portion of said base.

7. The bulb assembly of claim 1, wherein at least one of said plurality of first light emitting diodes and said at least one second light emitting diode mount to a plurality of circuit boards.

8. The bulb assembly of claim 1, including a lens adjacent said base.

9. The bulb assembly of claim 8, wherein said lens includes features for adjusting light from one of said plurality of first light emitting diodes and said at least one second light emitting diode.

10. The bulb assembly of claim 8, wherein at least one of said lens and said base includes a groove for slideably receiving an extension from said other of said lens and said base.

11. The bulb assembly of claim 1, wherein said first end portion includes features for securing said base to another bulb assembly.

12. The bulb assembly of claim 11, wherein said features include a threaded portion.

13. A light emitting diode lamp assembly, comprising:

a lamp fixture;

a first bulb assembly including,

a bulb base having a first end and a second end defining an axis;

a plurality of first light emitting diodes secured to said bulb base about said axis; and

at least one second light emitting diode secured adjacent said first end.

14. The lamp assembly of claim 13, wherein said lamp fixture secures to a wall.

15. The lamp assembly of claim 13, including a controller for adjusting light from one of said plurality of first light emitting diodes and said at least one second light emitting diode.

16. The lamp assembly of claim 15, including a second bulb assembly.

17. The lamp assembly of claim 16, wherein said second bulb assembly is secured adjacent said first bulb assembly.